Photovoltaic wall type assembly

Abstract

The utility model discloses a photovoltaic wall body type assembly, which comprises a photovoltaic assembly and a photovoltaic wall brick cavity made of foamed ceramic materials, the photovoltaic assembly comprises a transparent photovoltaic front plate, a packaging adhesive film filled in an inner cavity and a photovoltaic cell string in sequence from a light receiving surface to a back surface, and the photovoltaic assembly is embedded in the photovoltaic wall brick cavity. A mounting groove corresponding to a photovoltaic module is formed in the surface of the photovoltaic wall brick cavity, a low-porosity sealing layer is arranged on the surface of the mounting groove, edge sealing groove notches are formed in the periphery of the photovoltaic wall brick cavity, a local convex part is arranged on one side of the photovoltaic wall brick cavity, and a local concave part matched with the convex part is correspondingly arranged on the other side of the photovoltaic wall brick cavity. A junction box installation opening is formed in the side edge of the back face of the photovoltaic wall brick cavity. The photovoltaic wall body type assembly made of the foaming ceramic material is adopted, a mounting support is not needed, a fireproof layer does not need to be additionally constructed, wall bricks of a building are directly replaced, and the multiple functions of sound insulation, fire prevention, water prevention, moisture prevention and the like are achieved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a photovoltaic wall-mounted module. Background Technology

[0002] Currently, the installation of photovoltaic (PV) walls mainly falls into two categories: 1. Solar PV curtain walls: This solution combines natural light with PV power generation, but its power generation efficiency is low, with the average conversion efficiency of PV modules being less than 20%. It is also unsuitable as a direct wall component for buildings, generally requiring embedding into aluminum alloy profiles and the use of thickened explosion-proof glass. 2. Installing brackets on the exterior wall to fix traditional PV modules to the wall. This type of application is mainly on roofs and walls. Besides being expensive and complex to install, PV brackets also pose safety hazards such as rust and corrosion. Furthermore, PV power stations pose a fire hazard; therefore, a fireproof layer needs to be constructed between the wall and the modules. This is also why PV wall installation has not been widely adopted.

[0003] In response to the low conversion efficiency of photovoltaic curtain walls, and the fact that traditional photovoltaic modules need to be installed on walls using a hanging method, which requires a large number of brackets and has high labor costs, most wall solutions cannot be promoted mainly because they cannot effectively solve fire prevention measures. Therefore, a photovoltaic wall-mounted module is designed to replace the wall bricks of buildings. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a photovoltaic wall-mounted module that eliminates the need for installation brackets and additional fireproof layers. This module directly replaces building bricks and provides multiple functions such as sound insulation, fireproofing, waterproofing, and moisture resistance.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a photovoltaic wall-mounted module, including a photovoltaic module and a photovoltaic wall brick cavity made of foam ceramic material. The photovoltaic module consists of a transparent photovoltaic front panel, an encapsulating film filling the inner cavity, and a photovoltaic cell string, arranged sequentially from the light-receiving surface to the back. The photovoltaic module is embedded in the photovoltaic wall brick cavity. The surface of the photovoltaic wall brick cavity is provided with an installation groove corresponding to the photovoltaic module. The surface of the installation groove is provided with a low-porosity sealing layer. The photovoltaic wall brick cavity has sealing groove notches around its perimeter. One side of the photovoltaic wall brick cavity has a partially protruding part, and the other side has a partially recessed part that matches the protruding part. A junction box installation port is provided on the back side of the photovoltaic wall brick cavity.

[0006] Furthermore, the foam ceramic material is a Class A non-combustible material with a density of 380~430 kg / m³ and a compressive strength of 5 MPa or higher.

[0007] Furthermore, the transparent photovoltaic front panel is one of transparent tempered glass or ETFE aging-resistant photovoltaic front panel.

[0008] Furthermore, the encapsulating film filling the inner cavity is one of the conventional photovoltaic module encapsulating films EVA, POE, and EPE.

[0009] Furthermore, the photovoltaic cell string is one of the conventional HJT, Topcon, HBC, IBC, or ABC types.

[0010] Furthermore, the location of the junction box installation port on the back of the photovoltaic wall brick cavity is based on the wiring design of the photovoltaic wall-mounted module's array.

[0011] A photovoltaic wall-mounted system employing the aforementioned photovoltaic wall-mounted modules comprises an array of photovoltaic wall-mounted modules. Following a pre-designed circuit diagram, photovoltaic wall-mounted modules with certain differences are selected and assembled. After the combiner wires are connected, small foam ceramic bricks matching the mounting openings of the back junction box are used to seal the surface with mortar, creating a smooth wall on the back. The light-receiving surface is then covered with decorative bricks to enclose the pre-reserved edge-sealing grooves. After the array is installed, it is connected to the grid for power supply or stored in an energy storage system via a combiner box, inverter, and central control system.

[0012] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages:

[0013] 1. This utility model uses foamed ceramic material, which is more lightweight. The photovoltaic wall-mounted module with the same area is lighter and weighs only 1 / 3 of the weight of traditional wall bricks. It is easy to construct and can replace both wall bricks and photovoltaic modules. It is a combination of the two. Unlike traditional photovoltaic modules that are installed on the wall with brackets, no brackets are needed and no additional fireproof layer is required. It has multiple functions such as sound insulation, fire prevention, waterproofing and moisture prevention.

[0014] 2. This utility model utilizes the easy processing characteristics of foam ceramic material, and embeds it by setting appropriate local protrusions and local depressions, which facilitates installation and ensures the overall firmness. Junction box installation ports can be opened according to the wiring of the component array, and the repair of damaged components is convenient and quick. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1This is a schematic cross-sectional view of a photovoltaic wall-mounted module according to an embodiment;

[0017] Figure 2 This is a 3D schematic diagram of a photovoltaic wall-mounted module as an example.

[0018] Figure 3 This is a partial schematic diagram of a photovoltaic wall-mounted module after installation, as described in the embodiment.

[0019] Figure 4 A frontal view of a component installed on a building, as shown in the embodiment;

[0020] Figure 5 A schematic diagram of the front of the photovoltaic wall-mounted module array after installation, as shown in the embodiment.

[0021] Figure 6 for Figure 5 A magnified view of a portion of region M;

[0022] Figure 7 A schematic diagram of the back of a photovoltaic wall-mounted module array installed on a building, as shown in the embodiment;

[0023] Figure 8 A schematic diagram of the back of the photovoltaic wall-mounted module array after installation, as shown in the embodiment.

[0024] Figure 9 for Figure 8 A magnified view of a portion of region N;

[0025] Figure 10 for Figure 8 Schematic diagram of the circuit layout of the component array;

[0026] Figure 11 This is a schematic diagram illustrating the differences in the back structure of a photovoltaic wall-mounted module according to an embodiment;

[0027] Figure 12 This is a schematic diagram illustrating the differences at the splicing points of a photovoltaic wall-mounted module, as shown in this embodiment. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] Example

[0030] like Figure 1As shown, a photovoltaic wall-mounted module X1 includes a photovoltaic module 100 and a photovoltaic wall tile cavity 200 made of foam ceramic material. The photovoltaic module consists of a transparent photovoltaic front panel 101, an encapsulating film 102 filling the inner cavity, and a photovoltaic cell string 103, arranged sequentially from the light-receiving surface to the back. The photovoltaic module 100 is embedded in the photovoltaic wall tile cavity 200. The surface of the photovoltaic wall tile cavity 200 is provided with a mounting groove 201 corresponding to the photovoltaic module. The surface of the mounting groove 201 is provided with a low-porosity sealing layer 300. The photovoltaic wall tile cavity 200 has sealing groove notches 202 around its perimeter. One side of the photovoltaic wall tile cavity has a partial protrusion 203, and the other side has a corresponding partial recess 204 adapted to the protrusion. The back side of the photovoltaic wall tile cavity 200 has a junction box mounting port 205.

[0031] The foam ceramic material of the photovoltaic wall tile cavity 200 has a density of 380~430kg / m³, a compressive strength of over 5MPa, and is a Class A non-combustible material fired at 1200℃. It uses inorganic mineral raw materials, is green, environmentally friendly and pollution-free, has good waterproof and moisture-proof performance, excellent thermal insulation performance, and can effectively reduce noise transmission.

[0032] The transparent photovoltaic front panel 101 is made of 3.2mm transparent anti-glare tempered glass; the encapsulating film 102 filling the inner cavity is conventional photovoltaic module encapsulating film EVA; the photovoltaic cell string 103 is a high-efficiency HBC cell.

[0033] like Figure 2 As shown, this is a 3D view of the photovoltaic wall-mounted module X1. The dimensions of module X1 are: length 130cm, width 100cm, and thickness 24cm. The large notch 205 for installing the junction box has dimensions of: length 30cm and width 25cm, which is more conducive to manual wiring.

[0034] like Figure 3 As shown, wall-mounted component A is installed on top of wall-mounted component B. The recessed portion A-204 of component A and the raised portion B-203 of component B are inlaid and bonded together with mortar. A pre-reserved large notch allows for the connection of the negative terminal A-500 of component A's junction box with the positive terminal B-500 of component B's junction box. When the notch A-202 of component A's sealing groove merges with the notch B-202 of component B's sealing groove, a recessed groove is formed. Decorative brick X2 is embedded into the groove by applying mortar, simultaneously protecting the exposed glass edges of components A and B.

[0035] Figure 4 This is a schematic diagram showing the light-receiving surface of four wall-mounted photovoltaic modules (X1) installed on building Y. To better illustrate the arrangement of the photovoltaic modules, [further details are needed]. Figure 5The image shows a front view of the 20 photovoltaic wall-mounted modules X1 after installation. From the outside, only the anti-glare tempered glass 101, decorative brick X2, and photovoltaic module battery strings 103 can be seen.

[0036] like Figure 6 As shown, Figure 5 Zooming in on area M reveals that component X1 is enclosed by intersecting decorative strips X2-1, X2-2, X2-3, and X2-4.

[0037] Figure 7 This is a schematic diagram showing the backlighting surface of four wall-mounted photovoltaic modules (X1) installed on building Y. (Combined with...) Figure 3 As shown, after connecting the wires, seal the gap with mortar by applying small foam ceramic tiles (X3) that match the gap, so that the back of the wall forms a smooth surface.

[0038] like Figure 8 As shown, to meet the busbar wiring requirements of the wall, the wiring of the module array will be pre-designed, and the lead-out position of the junction box of the photovoltaic wall-mounted module X1 will be adjusted. The two junction box notches of module 1 are respectively arranged at the bottom and right ends; modules 2 and 3 belong to the same type of module, and their junction box notches are arranged at the left and right ends respectively. Enlarging the N area, as shown... Figure 9 As shown, the negative terminal 2-500 of the junction box of component 2 is connected to the positive terminal 3-500 of the junction box of component 3, thereby forming a circuit of the photovoltaic module array.

[0039] Figure 10 for Figure 8 The schematic diagram of the component array circuit layout shows that component 1 is connected to component 2, component 2 is connected to component 3, and so on, all the way to component 20, which forms a component array. The positive and negative poles of the array are then brought back to the same end to facilitate the paralleling of the array.

[0040] To better illustrate the types of rear-side modules for the aforementioned photovoltaic wall-mounted module X1, such as... Figure 11 As shown, the junction boxes are arranged according to their polarity and orientation, and can be initially divided into 12 types. Specifically: Component X-1 is the bottom positive and the top negative; Component X-2 is the bottom negative and the top positive; Component X-3 is the left positive and the right negative; Component X-4 is the right positive and the left negative; Component X-5 is the bottom positive and the left negative; Component X-6 is the bottom positive and the right negative; Component X-7 is the bottom negative and the left positive; Component X-8 is the bottom negative and the right positive; Component X-9 is the top positive and the left negative; Component X-10 is the top positive and the right negative; Component X-11 is the top negative and the left positive; Component X-12 is the top negative and the right positive.

[0041] Furthermore, depending on the installation and assembly requirements, such as Figure 12 As shown, the photovoltaic wall-mounted module Y-1 has no protruding part 203 at the top, and only retains a partially recessed part 204 at the bottom. It is generally used for splicing at the upper end of the wall. The photovoltaic wall-mounted module Y-2 has no partially recessed part 204 at the bottom, and only retains a partially protruding part 203 at the top. It is generally used for splicing at the lower end of the wall. The photovoltaic wall-mounted module Y-3 has no partially protruding part 203 at the top and no partially recessed part 204 at the bottom. It is generally used for splicing in special parts of the wall and for repairs.

[0042] Photovoltaic wall-mounted module system according to Figure 10 As shown, the overall array routing is designed first, and then according to... Figure 11 , Figure 12 Select the required photovoltaic wall-mounted module, and further determine based on... Figure 8 The installation, masonry, and splicing are shown in the diagram. The photovoltaic wall-mounted module system consists of several arrays of the above-mentioned modules. After passing through a combiner box, inverter, and central control system, the power is ultimately supplied directly to the grid or stored in the building's own energy storage system.

[0043] Repair method for damaged components: First, cut out the small foam ceramic tile X3 on the back, then remove the corresponding decorative strip tile X2 on the front. Cut along the edge sealing groove notch 202 to remove the damaged component and replace it with a new component. The operation is convenient and simple.

[0044] This invention utilizes foamed ceramic material, making it lighter and more convenient. The resulting photovoltaic wall-mounted module, with an encapsulated area, is significantly lighter, weighing only one-third the weight of traditional wall tiles. It is easy to install and can simultaneously replace wall tiles and photovoltaic modules, combining the two. Unlike traditional photovoltaic modules that rely on brackets for wall mounting, this invention eliminates the need for brackets and a separate fireproof layer, providing multiple functions such as sound insulation, fireproofing, waterproofing, and moisture resistance. Utilizing the easy-to-process nature of foamed ceramic material, it features appropriately designed raised and recessed areas for easy installation and ensures overall stability. Junction box installation ports can be provided according to the wiring of the module array, facilitating quick and easy repair of damaged modules.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic wall assembly, characterized by: The application relates to a photovoltaic wall brick cavity comprising a photovoltaic component and a foam ceramic material, wherein the photovoltaic component comprises, from the light-receiving surface to the back surface, a transparent photovoltaic front plate, a filling cavity encapsulating adhesive film and a photovoltaic cell string; the photovoltaic component is embedded in the photovoltaic wall brick cavity; mounting grooves are arranged on the surface of the photovoltaic wall brick cavity corresponding to the photovoltaic component; a low-porosity sealing layer is arranged on the surface of the mounting grooves; edge slot notches are arranged around the photovoltaic wall brick cavity; a local protruding part is arranged on one side of the photovoltaic wall brick cavity; a local recessed part corresponding to the protruding part is arranged on the other side of the photovoltaic wall brick cavity; and a junction box mounting port is arranged on the back side of the photovoltaic wall brick cavity.

2. A photovoltaic wall assembly according to claim 1, wherein: The foam ceramic material is a non-combustible A-grade material with a bulk density of 380-430 kg / m3 and a compressive strength of 5 MPa or above.

3. A photovoltaic wall assembly according to claim 1, wherein: The transparent photovoltaic front plate is one of transparent tempered glass and ETFE anti-aging photovoltaic front plate.

4. A photovoltaic wall assembly according to claim 1, wherein: The filling cavity encapsulating adhesive film is one of conventional photovoltaic component encapsulating adhesive films EVA, POE and EPE.

5. A photovoltaic wall assembly according to claim 1, wherein: The photovoltaic cell string is one of conventional HJT, Topcon, HBC, IBC and ABC.

6. A photovoltaic wall assembly according to claim 1, wherein: The junction box mounting port is arranged on the back surface of the photovoltaic wall brick cavity according to the wiring design of the component square matrix of the photovoltaic wall body type component.

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